In this study, we investigated PD-L1 expression in tumor and stromal immune cells, TILs (CD8+, FOXP3+, and PD-1+ cells), and their concomitant prognostic value in a large cohort of gastric carcinomas and in molecular groups stratified by EBV-infection and MSI status. The gene discussed is FOXP3; the disease is gastric carcinoma.